TLD5190QVXUMA1 - 55V H-Bridge DC-DC LED Controller | Infineon
MPN: TLD5190QVXUMA1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.64 | $36.40 |
| 100 | $3.28 | $328.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.62 | $2,620.00 |
TLD5190QVXUMA1 Overview
An LED driver controller is a power-management IC that regulates current through high-brightness LEDs by converting a variable battery or bus voltage into a precisely controlled output. The TLD5190QVXUMA1 is a controller (not a fully integrated switch) and therefore requires external MOSFETs in an H-bridge topology. The H-bridge architecture enables seamless buck-boost operation, which is critical in automotive applications where the battery voltage can rise to 40 V on load-dump events yet the LED forward voltage may sit below, at, or above the input rail depending on current and temperature.
Key differentiating features include a programmable switching frequency of 200 kHz to 700 kHz, spread-spectrum frequency modulation (SSFM) for EMI reduction, integrated protection (open-LED, short-to-Ground, short-to-Battery, overtemperature), and an analog + PWM dimming interface for brightness control. The device supports both analog (0-100% via external voltage) and digital PWM dimming with high contrast ratios, making it suitable for matrix-LED and adaptive driving beam (ADB) applications.
The TLD5190QVXUMA1 uses a peak-current-mode control architecture with built-in slope compensation and a synchronous rectification gate driver for both high-side and low-side MOSFETs. The H-bridge topology allows the controller to operate as a step-down (buck), step-up (boost), or buck-boost converter without mode-change transients, ensuring smooth LED current during VIN transients such as cranking pulses.
Typical applications include automotive LED headlamps (low beam, high beam, DRL), fog lights, rear combination lamps, signal lighting, and general high-brightness LED drivers where efficiency above 90% is mandatory for thermal management. The wide 4.5V to 40V input range with load-dump tolerance makes it ideal for 12V and 24V automotive electrical systems.
When designing with this controller, pay close attention to the gate-drive layout, MOSFET selection for the chosen switching frequency, and inductor/ capacitor sizing for the target current ripple. The exposed thermal pad of the VQFN-48 must be soldered to a sufficient copper pour to meet the thermal resistance specified in the manufacturer datasheet.
This page synthesizes distributor pricing, drop-in alternatives sourced from cross-reference databases, and practical design notes not consolidated on the manufacturer product page, giving engineers a faster path from MPN to BOM.
Drop-in alternatives for TLD5190QVXUMA1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TLD5190QVXUMA1 (same form factor and footprint) — differing in Package, Operating Temperature Range, Family, Input Voltage Range, Topology.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TLD5097EPXUMA1
✅ Drop-In✓ In Stock
$1.9 / Unit
View Datasheet →TLD1125ELXUMA1
✅ Drop-In✓ In Stock
$0.85 / Unit
View Datasheet →TLD5190QVXUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Synchronous H-Bridge (Buck / Boost / Buck-Boost DC-DC Controller) |
| Input Voltage Range | 4.5 V to 40 V (load-dump tolerant up to 55 V transient) |
| Output Voltage Range | 2 V to 55 V |
| Switching Frequency | 200 kHz to 700 kHz (programmable) |
| Peak Efficiency | 96% |
| Dimming Interface | Analog (0-100%) and PWM Dimming |
| Spread-Spectrum Frequency Modulation | Yes (SSFM, EMI reduction) |
| Control Architecture | Peak Current Mode with slope compensation |
| Gate Drivers | Integrated high-side + low-side for 4 external MOSFETs (H-bridge) |
| Package | VQFN-48 (PG-VQFN-48-31) with exposed thermal pad, 7x7 mm |
| AEC-Q100 Qualification | Qualified (automotive grade) |
| Operating Temperature Range | -40 C to +150 C (junction) |
| Protections | Open-LED, short-to-GND, short-to-Battery, overtemperature, overcurrent |
| MSL Level | 3 (per JEDEC J-STD-020) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Family | LITIX Power (Infineon automotive LED driver family) |
TLD5190QVXUMA1 vqfn-48 (pg-vqfn-48-31) with exposed thermal pad, 7x7 mm Pin Configuration Guide
Pin configuration for TLD5190QVXUMA1 (vqfn-48 (pg-vqfn-48-31) with exposed thermal pad, 7x7 mm package). This power device features gate, drain, and source terminals. For non-polarized packages, refer to the manufacturer datasheet for exact pin 1 orientation and footprint details. Common applications include power supply design, motor driving, and load switching.
No detailed pinout data available for TLD5190QVXUMA1.
Refer to the datasheet for full pin configuration.
Typical Applications
TLD5190QVXUMA1 is suitable for 7 applications: Automotive LED Headlamp (Low/High Beam), Daytime Running Light (DRL) Driver, Rear Combination Lamp and Signal Lighting, 24V Commercial Vehicle LED Lighting, Matrix-LED and Adaptive Driving Beam (ADB), Industrial High-Brightness LED Driver, Two-Wheeler and Motorcycle LED Headlamp.
Automotive LED Headlamp (Low/High Beam)
The TLD5190QVXUMA1 is purpose-built for automotive LED headlamp low-beam and high-beam drivers. Its 4.5V to 40V input range with 55V load-dump tolerance directly meets ISO 7637-2 12V transients, while the synchronous H-bridge topology keeps LED current constant as the headlamp string voltage crosses the battery rail during cranking pulses. The 96% efficiency keeps dissipation low in the sealed lamp housing, and the integrated analog+PWM dimming interface supports adaptive driving beam (ADB) matrix-LED modulation above 1 kHz PWM without visible flicker.
Recommended
Daytime Running Light (DRL) Driver
DRL modules typically operate below 25W total LED power, and the TLD5190QVXUMA1 drives them efficiently with a compact external H-bridge of four small MOSFETs. The 200 kHz to 700 kHz programmable switching range lets designers pick a frequency that avoids AM-band interference, while the integrated spread-spectrum modulation (SSFM) attenuates peak EMI by up to 10 dB, simplifying CISPR 25 Class 5 compliance. Analog dimming through the SET pin enables smooth daylight-to-night brightness transitions in adaptive front-lighting systems.
Recommended
Rear Combination Lamp and Signal Lighting
Brake, tail, and turn-indicator LEDs in the rear combination lamp demand high reliability and the ability to handle constant on/off cycling with PWM dimming for sequential turn signals. The TLD5190QVXUMA1's integrated protections - open-LED, short-to-GND, short-to-Battery, and overtemperature shutdown with hysteresis - eliminate the need for external fusing. The H-bridge topology also supports matrix-style tail-light signatures where different LED segments must be driven independently while sharing one DC-DC stage.
Recommended
24V Commercial Vehicle LED Lighting
The TLD5190QVXUMA1's 4.5V to 40V continuous input also covers 24V truck and bus electrical systems, including double-battery jump-start conditions and load-dump transients defined by ISO 7637-2 for 24V networks. The buck-boost capability delivers stable LED current regardless of whether the LED string voltage is above or below the bus, which is critical in cold-crank scenarios where 24V battery voltage can sag briefly. AEC-Q100 qualification ensures the part survives the harsher temperature and vibration profiles of commercial vehicle applications.
Recommended
Matrix-LED and Adaptive Driving Beam (ADB)
Matrix-LED headlamps dynamically shade pixels to avoid dazzling oncoming traffic, and the TLD5190QVXUMA1 supports this with its analog and PWM dimming interface capable of high contrast ratios at dimming frequencies above 1 kHz. The synchronous H-bridge keeps the LED string voltage stable while individual pixels are switched by external MOSFETs or LED driver ICs, preventing the global current drift that would otherwise be visible as brightness pumping. This combination of efficiency, EMI control, and dimming fidelity is what distinguishes the TLD5190QVXUMA1 from simpler buck LED drivers in the LITIX family.
Recommended
Industrial High-Brightness LED Driver
Beyond automotive, the TLD5190QVXUMA1 fits industrial high-bay and outdoor LED luminaires where the wide input range, 96% efficiency, and rich protection set simplify design. The H-bridge buck-boost topology drives LED strings from 24V or 48V industrial rails where the LED forward voltage may sit at any level depending on current and temperature. AEC-Q100 qualification also means the part tolerates harsher thermal environments than consumer-grade LED drivers, extending luminaire lifetime in outdoor installations.
Recommended
Two-Wheeler and Motorcycle LED Headlamp
Motorcycle and e-bike headlamps operate from a 12V lead-acid or lithium battery that can swing from 9V during cranking up to 40V on load-dump, and the TLD5190QVXUMA1's 4.5V-40V input plus load-dump tolerance covers this range without external clamping. Its small VQFN-48 footprint and external MOSFET design let designers shrink the driver PCB to fit inside the constrained headlamp housing of two-wheelers. The 96% efficiency reduces thermal stress on the housing, an important consideration when the lamp is sealed against water ingress.
Recommended
Recommended Products Summary
Engineering reference data for TLD5190QVXUMA1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TLD5097EPXUMA1 | TLD1125ELXUMA1 |
|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | VQFN-48 (PG-VQFN-48-31, 7x7 mm) | VQFN-48 - same footprint | VQFN-48 - same footprint |
| Topology | Synchronous H-Bridge (Buck / Boost / Buck-Boost) | Buck-only switching controller | Linear LED driver |
| Switching Frequency | 200 kHz to 700 kHz | 100 kHz to 500 kHz | N/A (linear) |
| Peak Efficiency | 96% | 92% | N/A (linear, V_IN-dependent) |
| Maximum LED Current | Set by external MOSFETs (multi-amp capable) | Set by external MOSFETs | Up to 150 mA |
| AEC-Q100 Qualification | Yes | Yes | Yes |
| Approx. Unit Price (qty 100) | $3.28 | $2.10 | $1.45 |
Key Differentiators
- Synchronous H-bridge buck-boost topology with 96% efficiency (vs TLD5097EPXUMA1)
- Multi-amp output capability via external MOSFETs (vs TLD1125ELXUMA1)
- 200 kHz to 700 kHz programmable frequency plus integrated SSFM (vs TLD5097EPXUMA1)
Design Notes
The TLD5190QVXUMA1 does not dissipate significant power itself because the switching MOSFETs are external, but the gate-drive current and quiescent consumption still contribute. Estimated: with a 700 kHz switching frequency, four 30 nC-gate MOSFETs, and 12V gate drive, gate-charge loss is approximately 0.7 W. Solder the exposed thermal pad to a top-layer copper pour of at least 1 square inch to keep junction temperature rise below 30 C at 1 W controller dissipation in the sealed headlamp housing.
Place the four H-bridge MOSFETs symmetrically around the IC to minimize the high-frequency power-loop area, which directly impacts EMI compliance under CISPR 25. The input bulk capacitor must be within 10 mm of the high-side MOSFET sources to suppress switching spikes. Use a 4-layer PCB with a continuous ground plane on layer 2 beneath the switching node to provide a low-impedance return path and avoid coupling into the analog SET/dimming traces.
Do not operate the TLD5190QVXUMA1 in continuous boost mode above 60V output without verifying MOSFET VDS rating - 60V-rated MOSFETs are only marginal at 55V plus ringing. Also, the SSFM feature is enabled by default but should be confirmed by measuring the spectrum at the EMC chamber; some customers disable SSFM in firmware to lock a single frequency for predictable notch placement. Finally, ensure the SET pin current-sense resistor uses a 1% or better tolerance to maintain LED current accuracy across the -40 C to +150 C automotive temperature range.
Keep the analog ground (AGND) and power ground (PGND) nets separated at the IC and joined only at the input bulk capacitor negative terminal, as recommended in the manufacturer datasheet layout guideline. This star-ground topology prevents high di/dt switching currents from injecting noise into the SET pin current-sense amplifier. Route the PWM dimming signal as a guarded trace away from the switching node to avoid capacitive coupling that could appear as flicker at high dimming ratios.
Compliance Information
AEC-Q100 qualified per Infineon product brief. RoHS compliant per Arrow and DigiKey listings. Halogen-free status not stated in the provided data and is marked unknown.
